Wall mold



March 15, 1932. G. w. HELLER WALL MOLD Filed Sept. 23, 1929 2Sheets-Sheet 1 .L. WN

March 15, 1932. w. HELLER 1,849,758

WALL MOLD Filed Sept. 23, 1929 2 Sheets-Sheet 2 22 2 Z3 z A 19 Z 23 H 2d I INVENTOR. Gcofge Hz felled, Y 1;

Patented Mar. 15, 1.932

UNITED'7'STATES 'OFFICE' I I qmnenwj mg m ykwp 4 Application medSeptember23, 1929'. Serial No. 894,510.

This invention relates to molds for the erection in situ of walls ofconcrete or other plastic materials.

One object of the invention is to provide inner and outer mold platesfor the formation of inner and outer mold walls between which the wallof concrete is molded, which wall plates are designed to be supported bystuds of a permanent framing about which the concrete wall is formed andto be detachably connected and arranged in horizontal zones or courses,so that a portion of the wall up to a certain height or level may beformed and the plates removed as soon as such wall portion is set andapplied for use at a higher level, thus obviating the necessity oferecting the mold walls toany great height at one time and therebyreducing the number of mold plates necessary for use in forming a wall.

A further object of the invention is to provide mold plates and memberswhich may be easily and quickly set up for use and taken down after use;which may be employed for molding a wall of any desired length, heightand thickness; which provides inner wall plates which are secureddirectly to the studding and which, on removal. will leave a properspace between the studs and formed outer wall for the attachment ofplaster board or lathing and plastering to the studs to form an innerwall and an intervening air space; and which embodies means for spacingthe inner and outer wall molds from each other, which means may be left,if desired, to form retainers for a finishing coat.

A still further object of the invention is to provide outer wall formingplates which, in the formation of a wall where studs are not present,may be employed to form both inner and outer wall forming members whichmay be connected and detachably held in working position by theretainer-forming spacing means above referred to.

\Vith these and other objects in view, the.

Fig. 1 is a perspective view, looking from the outer side, of a framingfor walls meeting at a corner angle and showing how some of the'innerand outer mold plates are set up for use.

Fig. 2 is a similar view looking toward the inner side of the framingand showing fragmentarily some of the inner mold plates arranged foruse.

Fig. 3 is a sectional plan view showing the inner mold plates asdesigned for application to tan end or corner stud and an ad acent rowstu Fig. 4 is a perspective view of an outer mold plate.

lFig. 5 is a similar view of a telescopic mold p ate.

Fig. 6 is a vertical section showing how a cross-tie is connected toouter mold plates.

Fig. 7 .is a sectional plan view showing the fastening connectionbetween dissimilar ends of two outer mold plates.

Fig. 8 is a sectional view showing the means for fastening an inner moldplate to a stud.

Fig. 9 is a fragmentary outer side view of an outer mold plate showingthe use of an auxiliary brace.

Fig. 10 is a view showing the useof the outer mold plates disclosed inconjunction with cross-tiestrips for forming both the inner and theouter mold walls where, for example, studs ofa wall framing are notpresent.

Referring now more particularly to the drawings, 1 designates the sillsand 2, 2* the studs or uprights of a wall framing, in the spaces betweenand on the outer sides of -which uprights an outer wall of concrete orthe like is to be molded. Inner and outer wall forming mold plates 3, 3*and 4:, 4*, respectively, are provided for this purpose.

Each inner wall forming mold plate 3 comprises a sheet metal body of asuitable height and of a width substantially equal to the distancebetween adjacent studs. Said plate is formed between its vertical centerand one of its side edges with a U-shaped channeledportion 5 to embracesubstantially the inner half of a stud 2, so as to dispose an appliedplate in such manner that its long and short wings or portions 6 and 7,arranged on opposite sides of the channel, will lie outwardly beyond theplane of the inner faces of the framing studs and in the spaces betweenthe stud engaged by its channel and the adjacent studs on opposite sidesthereof. The arrangement is such that the short and long wings of eachplate respectively engage the long and short wings of adjacent plates 3or 3 on opposite sides thereof, so that a row or series of the platesengaging the spaced studs, arranged in a horizontal row or course, andwith their wings overlapping each other at the joints, will close thespaces between the studs for a vertical height or distance equal to thedepth or height of the plates. The channeled portions 5 of therespective plates 3 are provided with fastening means for holding themdetachably engaged with the studs. In the present instance, a fasteningdevice is mounted on each channeled portion 5 and comprises a lever-likeclamping member 8 having a spur 9 at one end movable through an openingin the channeled portion to engage the stud 2, as shown particularly inFigs. 2 and 8, by means of which each plate 3 may be firmly secured inposition for the molding operation and removed when the moldingoperation is completed. Each mold plate 3 is similar in construction tothe mold plates 3 but is provided with wings 6 and 7 of equal lengths,or of sufficient length to extend in opposite directions beyond the stud2 engaged by its channeled portion 5 and adjacent studs at oppositesides of said engaged stud for the purpose of meeting certainconditions. as when the stud 2 engaged by the channeled portion of theplate is arranged adjacent to a corner stud 2"-, as illustrated in Fig.3. In other words, the wing 7 of plate 3, is prolonged as compared withwing 7 of a plate 3, in order to extend the full distance between theintermediate row stud and the corner stud in view of the fact that aplate with a channel 5 can not be used to engage a corner stud and aspecial corner plate 10 must be provided for this purpose. This cornerplate is substantially Z-shaped, or comprises a body part 11 adapted tolie against one side of the post 2 and having oppositely extendingflanges 12 and 13 to respectively bear against the inner face of thepost and the adjacent end of the wing 7 of the coacting mold plate 3. Ineach instance where a corner angle plate 10 is used it may he secured tothe post 2 by nails or other suitable fastenings 13 which may bewithdrawn to permit of the removal of the plate 10 at the end of afilling operation.

The outer wall forming plates 4 are of a length conforming to thedistance between two or more studs 2 and 2 and preferably of a depth orheight equal to one-half the depth or height of the inner plates 3 and3, so that two horizontal rows or courses of the plates 4 will be equalin depth to one row or course of the plates 3, 3, but, while thisrelative dimensioning of the plates is preferred, the outer wall platesmay, if desired, be made of the same depth or height as the inner wallplates. Each outer wall plate 4 is, as shown, of oblong rectangular formand comprises a body portion provided with outturned longitudinal uppc;and lower edges 14 and 15, provided respectively with flanges 16 and 17,the former projecting upwardly from the edge 14 parallel with the bodyplate and the latter projecting upwardly from the edge 15 parallel withthe body plate and lying opposite the same. Each plate 4 is alsoprovided with outwardly turned end edges 18 and 19, respectivelyprovided with flanges 20 and 21, the former projecting inwardly parallelwith the plate body and the later projecting outwardly parallel with theplate body, as clearly shown in Fig. 7. This construction provides ashallow tray-like form of mold plate bounded by reinforcing marginaledges, and which, by the described arrangement of the flanges 17 and 20is channeled or trough-shaped at one of its longitudinal edges and oneof its end edges and provided with projecting flanges 16 and 21 at itsremaining edges. This construction adapts the plates 4 to be mounted insuperposed relation with the flanged edge 15 of one plate resting uponthe flanged edge 14 of the underlying plate, so that the flanges 17 and16 of the respective plates lie in abutting and parallel relationship,and so that the flanged end 18 of one plate 4 may lie in contact withthe flanged end 19 of an adjacent plate in the same horizontal row orcourse with their flanges 20 and 21 abutting and overlapping asv shownparticularly in Fig. 7. The construction is therefore such that when twoor more rows or courses of the marginally reinforced and flanged moldplates 4 are set up the reinforced portions of the plate will provideabutment surfaces to adequately support and reinforce the plates fromone another with their lapping flanges so disposed as to permit of aready and convenient fastening connection of the plates with oneanother.

For the purpose of joining the longitudinal and transverse edges ofadjacent mold plates 4, each mold plate 4 may be provided upon itsflanges 16 and 21 with pivoted clamps 22 having clamping jaws 23.whereby the lapping flanges 16 and 17 of superposed mold plates and thelapping flanges 20 and 21 of mold plates in abutting relation, may beclamped together, as illustrated in Figs. 6 and 7.

For the purpose of holding the outer wall mold formed by the plates 4 inspaced relation to the inner mold wall formed by the plates 3, 3, aswell as to prevent any possibility of outward displacement of the outermold v wall, cross-ties 24 are provided for connecting the outer moldwall at points with the studs 2 and 2; Each of these crossties consists,as shown particularly in Fig. 6, of a metallic strip having a bent end25 perforated for passage of a fastening nail 26 to secure it to a stud2 or 2 and having its opposite or free end normally bent in L-formation, as at 27, so as to be disposed to lie between the ends 14 and15 of superposed mold plates 4 and between the flanges 16 and 17 thereofand then to be bent,'after engagement therewith to form a retainingtongue28, so that when the flanges 16 and 17 are engaged and held by theclamps 22 the crossties and mold plates 4 will be firmly united. Whenthe mold plates are later taken down or disassembled, the bodies of thecross-ties 24 will be invested by the concrete which has been filled inbetween the mold walls to form the outer building wall, leaving the bentends of the cross-ties projecting, which may thereupon be cut off orallowed to'remain for use as retainers in case a finishing coating ofany kind is applied upon the outer surface of the molded building wall.

From the foregoing it will be understood that, in erecting a buildingwall in which framing studs are provided, it is only necessary to set upthe inner and outer mold plates, which will be supported by the studdingand initially by the frame sills and later by the wall as erected, sothatit is only necessary to erect the mold walls initially to a certainlevel, after which the concrete may be filled in to form the buildingwall up to such level, and upon the setting of the concrete, the moldsmay be removed and placed at a higher level to form another portion ofthe wall, and this procedure may be followed, for the erection of themolded wall in steps, or until said wall is completed. This obviates thenecessity of setting up mold walls to the full height to which thebuilding wall is to be erected, or setting up the mold walls to any verygreat height, which is objectionable for many reasons, among them theliability of bulging of the mold walls and imperfect formation of thebuilding wall, and the number of molds and amount of material requiredin the erection of a building wall. All these disadvantages are overcomeby means of my improved construction of mold plates, whereby the numberof mold plates required for use at any time is reduced to the minimum,and a step by step operation of erecting the building wall permitted,with resulting convenience and economy in carrying on the work.

It is to be understood, of course, that the mold plates are made ofsheet or cast metal, preferably sheet metal, of a desired gage to securethe requisite stiffness, and that, wherever end or corner posts areencountered the inner mold plates 3 and angle plates 10 are employed.Also in adapting an outer wall mold to be erected so that-mold wallplates will properly meet at corner angles, as well asto provide forvariations in the spacing between studs, mold plates or sections 4 asshown in Fig. 5 are employed. These mold plates or sections 4 conformgenerally in construction with the mold plates or sections 4, exceptthat each mold plate 4 is composed of sections 4 and 4 which areslidably or telescopically connected, so that a mold plate of less orgreater length than normal may be provided whenever necessary.

The mold plates 4 and 4 may be suitably reinforced. In the presentinstance I have shown the mold plates 4 provided each with a verticaltransverse reinforcement 29, rigid with the plate and secured in anysuitable manner to the plate body and edges 14 and 15. In order toprovide means for similarly bracing the mold plates 4 when properlyadjusted for use, or for additionally bracing any mold plate 4 whennecessary, an auxiliary reinforcement-29 may be used and fitted for usebetween the edges 14 and 15 of a mold plate. Auxiliary brace 29 isprovided at one end with an extension 30 carrying a clamp 31 which maybe similar in construction to the clamps 22. With this construction thebrace 29 may be fitted at one end in the channeled longitudinal portionof a mold plate so as to be retained from displacement by the flange 17,with its extension 30 lying parallel with the flange 16 of the moldplate, so that the lever .31 maybe employed to connect said extension 30with the flange 16 of the mold plate for detachably holding theauxiliary brace in position.

In case a concrete wall is to be formed Where there is no frame studdingfor supporting the molds, both the inner and the outer mold walls A, B,respectively, as shown in' Fig. 10, 'may be formed of connected outermold plates 4, which may be connected and maintained in spaced relationduring the molding operation by means of crossties 24 of the typepreviously described. Where concrete walls are to be formed some ofwhich will encase a studframing and some not, a combination of the twomold forming arrangements of different mold plates may be used, as willbe readily understood.

While the structure disclosed is preferred, it will, of course, beunderstood that various changes in the form, construction andarrangement of parts may be made within the scope of the invention asdefined in the appended claims, without departing from the spirit orsacrificing any of the advantages of the invention.

Having thus described my invention, I claim 1. In a wall mold, moldplates each having outturned longitudinal and transverse edges, onelongitudinal and one transverse edge having outwardlyextending flangesand one longitudinal and one transverse ed e having inwardly extendingflanges, a detac able brace disposed between the longitudinal edges ofthe plates and held at one end by the inturned longitudinal edge of theplate, a clamp for connectin the brace to the opposite outturnedlongitudinal edge of the plate, and means for connecting the outwardlyextending flanges of a plate to the inwardly extendin flanges ofadjacent plates.

2. In a mold or forming a wall between and outwardly beyond uprightframe studs, inner wall plates adapted to be secured to the studs, outerwall plates arranged outwardly beyond the studs and having abuttingoutturned edges provided with flanges, crossties secured at one end tothe studs and having their opposite ends bent at an angle between theoutturned edges and flanges of the outer wall plates, and clamping meansuniting the flanged edges of the plates and holding the bent edges ofthe cross-ties therebetween.

3. In a wall mold, a mold plate having a channeled portion and wings atopposite sides thereof, said channeled portion being formed to embrace aface and opposite sides of a wall forming stud, and havin an openingtherein, and a fastening mem ber pivotally mounted on said channeledportion of the mold plate and provided with a spur projectible throughsaid 0 ening to enter the stud and fasten the mol plate thereto.

In testimony whereof I aflix m signature.

GEORGE W. ELLER.

